weights of 67 college students in kilograms in september of freshman year are provided in the accompanying…

weights of 67 college students in kilograms in september of freshman year are provided in the accompanying data set. construct a frequency distribution. begin with a lower class limit of 40.0 kg and use a class width of 10.0 kg. does the distribution appear to be a normal distribution? (type your answers as integers or decimals, rounded to the nearest tenth as needed.)

weights of 67 college students in kilograms in september of freshman year are provided in the accompanying data set. construct a frequency distribution. begin with a lower class limit of 40.0 kg and use a class width of 10.0 kg. does the distribution appear to be a normal distribution? (type your answers as integers or decimals, rounded to the nearest tenth as needed.)

Answer

Explanation:

Step1: Determine class intervals

Starting with lower - class limit of 40.0 kg and class width of 10.0 kg, the class intervals are 40.0 - 49.9, 50.0 - 59.9, 60.0 - 69.9, 70.0 - 79.9, 80.0 - 89.9, 90.0 - 99.9.

Step2: Count frequencies for each class

For the class 40.0 - 49.9: We go through the data set and count the number of values in this range. There are 2 values (41.9, 48.9). For the class 50.0 - 59.9: Counting the values in this range, we find 15 values (50.1, 53.1, 56.1, 57.1, 54.0, 59.2, 53.2, 55.3, 56.2, 57.2, 58.2, 59.8, 54.1, 58.2, 51.2). For the class 60.0 - 69.9: There are 18 values (61.0, 64.0, 66.9, 67.1, 68.2, 69.3, 67.7, 68.0, 64.3, 63.1, 63.0, 62.3, 63.8, 63.8, 64.1, 63.8, 66.3, 65.2). For the class 70.0 - 79.9: There are 16 values (72.1, 74.2, 70.1, 71.0, 72.1, 73.1, 77.3, 73.8, 73.7, 74.3, 71.1, 75.1, 74.2, 73.7, 73.8, 74.3). For the class 80.0 - 89.9: There are 4 values (81.0, 87.0, 80.1, 83.1). For the class 90.0 - 99.9: There are 2 values (96.8, 94.2).

Answer:

Weight (kg) Frequency
40.0 - 49.9 2
50.0 - 59.9 15
60.0 - 69.9 18
70.0 - 79.9 16
80.0 - 89.9 4
90.0 - 99.9 2